Snapdrive [ WARN] SD-10015 Switch to the best-effort mode

[wintermute]

While doing Backups using SMO and Snapdrive we see now and then the following Warning Message :

[ WARN] SD-10015: Snapdrive command "/usr/sbin/snapdrive snap create -fs /DXXX/u01 -snapname dxxx_smo_h_daily_20151009_053621_1_8a9a9ca5504aabb201504aabb7650001_0 -unrelated" generated warning: 0001-904 Warning: Attempting to take a crash consistent snapshot.
Switching to the best-effort mode

What does this Message mean ? Can it be ignored as long as it is not arising regularly ?

Thanks Eric

[ekashpureff · Accepted solution]

Eric -

I'm guessing you're using ASM ?

It means SnapDrive had a problem while trying to snapshot multiple LUNs in a consistency group.

See the Snapdrive documentation: Crash-consistent Snapshot copies

https://library.netapp.com/ecmdocs/ECMP1552619/html/GUID-E42D87FB-720D-46F4-9BC9-3F9632C5DB71.html

SMO is designed to fail 'safe'' - the snapshots are probably all good on these backups, or SMO wouldn't mark them as succesful.

I wouldn't be worried about it, but you may want to do a test clone of the DB from one of the backups with the error message.

I hope this response has been helpful to you.

At your service,

Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, IT Learning Solutions http://sg.itls.asia/netapp
(P.S. I appreciate 'kudos' on any helpful posts.)